Strain Rate Dependency of Material Parameters in Discrete Model for Concrete Fracture

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Strain Rate Dependency of Material Parameters in Discrete Model for Concrete Fracture

Popis výsledku v původním jazyce

The contribution presents simulations of concrete experiments using discrete meso-scale model. In the model, the volume domain is discretized into a system of interconnected particles of polyhedral shape that are considered as ideally rigid. The behavior of material is simplified by the particle interaction and is described by the constitutive law applied at particle contacts. The existing constitutive law is enhanced with the the strain rate dependency. With increasing rate of deformation, the material resistance is increased. Various settings of function governing such an increase are considered. In combination with influence of inertia forces, the model is capable of representing the dynamical nature of concrete fracture. The results obtained with the model are compared with the results of dynamical experiments from literature.

Název v anglickém jazyce

Strain Rate Dependency of Material Parameters in Discrete Model for Concrete Fracture

Popis výsledku anglicky

The contribution presents simulations of concrete experiments using discrete meso-scale model. In the model, the volume domain is discretized into a system of interconnected particles of polyhedral shape that are considered as ideally rigid. The behavior of material is simplified by the particle interaction and is described by the constitutive law applied at particle contacts. The existing constitutive law is enhanced with the the strain rate dependency. With increasing rate of deformation, the material resistance is increased. Various settings of function governing such an increase are considered. In combination with influence of inertia forces, the model is capable of representing the dynamical nature of concrete fracture. The results obtained with the model are compared with the results of dynamical experiments from literature.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Sborník příspěvků Juniorstav 2018

ISBN

978-80-86433-69-1

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

582-586

Název nakladatele

Vysoké učení technické v Brně, Fakulta stavební

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

25. 1. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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